RSPS How to... Help me please!

Ok, well here's the Deal, I have one RSPS that I can't log in to bc I have exceeded the incorrect log limit, and idk how to reset server. BC it tells me I can't log again till server reset.

On my other server, I just plain can't connect. And I can't make another no-ip host bc when I open no-ip DUC and log in, It freezes while authorizing, EVERY TIME, I had to get someone else to do it the first time. And I can no longer get in contact with that person.

I ALSO have a compiler error

Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.

I do not know how to "Recompile with -Xlint:unchecked".

And yeah... Those are my problems, I would GREATLY Appreciate anyone who would be willing to help me. If you wish I would give you Co-Owner. :)